Owners manual

ManualsBrandsPypes Performance Exhaust ManualsAutomotiveSFM87MX Cat Back Exhaust System Fits 18 Mustang

SFM87MH SFM87MHB SFM87MX SFM87MXB

SFM87MH: 2018 Mustang GT H-Bomb Cat Back

Thank you for purchasing your Pypes Performance Exhaust cat

back system for your 2018 Mustang GT. Please take the time

now to review these installation instructions and confirm that all

the components in the kit where received in your shipment

before you begin disassembly of your car. If you find a compo-

nent missing or have questions about the installation please

contact our technical department at tech@pypesexhaust.com

or through our live chat room found on the home page of the or through our live chat room found on the home page of the

Pypes website at www.pypesexhaust.com.

Begin by placing the vehicle on a lift or four jack stands at maximum height.

Unbolt your factory system cat-back by loosening the two butt connect clamps

using a 15mm socket. Retain these clamps because they will be reused later

in the installation.

Once these clamps are loose the factory system can be

removed in one piece. The use of a penetrating lubricant

on the factory rubber insulators will aid in this step. on the factory rubber insulators will aid in this step.

There is no cutting required.

Now it’s time to start the installation of your new system. Begin by

installing the two PVA12 adapters using two HCV24 clamps into the

front of the HFM86/XFM86 mid-pipe. Next install the mid-pipe assembly

into the car reusing the two factory but connect clamps keeping all the

clamps loose until final adjustment. Note: the mid-pipe has a support rod welded to the back of the clamps loose until final adjustment. Note: the mid-pipe has a support rod welded to the back of the

mufflers. This rod should face the ground and mufflers tuck up nicely following the lines in the gas

tanks.

Next, install the TFM87LF/TFM87RF tailpipe sections into the factory rubber isolators then into the Next, install the TFM87LF/TFM87RF tailpipe sections into the factory rubber isolators then into the

mufflers using two more HVC24 clamps at that muffler. The remaining two tailpipe sections

TFM87LR/FTM87RR are easiest to install by running wire form hanger through the factory rubber

insulators first and then connecting the slip fit joints. Use the two more HVC24 clamps at this con-

nection followed by the YFM87 Y-pipes and tips.

Now that everything is installed loosely you can begin the alignment and tightening process.

Making sure the mid-pipe is flat and follow the gas tank tighten the two clamps forward of the box

followed by the factory butt connect clamps.

Next tighten the tailpipe sections but only after you have the tips align in the openings of the val-

ance. Tighten the tips and your installation is complete. Note: The use of air tools is highly recom-

mended for these steps.

Lastly, start your car and check for exhaust leaks. Condensation drips from the slip joints are

normal for the first few miles of driving until the system is fully seated.

BILL OF MATERIALS

2 PVA12 Adapter

1 HFM86/XFM86 Mid-pipe

1 TFM Tailpipe Set

8 HVC24 Band Clamps

4 EVT57 or EVT57B Tips

SFM87MX: 2018 Mustang GT X-Bomb Cat Back